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Finding the Fourth Proportional to 172,572.83, 238,223.99 and 116,017.01

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Solution

The fourth proportional to 172,572.83, 238,223.99 and 116,017.01 is: 160,152.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,572.83 : 238,223.99 = 116,017.01 : x
  2. Step 2: Convert to fraction form
    172,572.83/238,223.99 = 116,017.01/x
  3. Step 3: Cross multiply
    172,572.83x = 238,223.99 × 116,017.01
  4. Step 4: Simplify right side
    172,572.83x = 27,638,034,369.74
  5. Step 5: Solve for x
    x = 27,638,034,369.74/172,572.83
  6. Step 6: Final answer
    x = 160,152.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.